jtag(1)

📦
version 2021.03 · 2 versions
, in arch rolling, debian bookworm, debian trixie, fedora 43, fedora 44, nixos 26.05, nixpkgs unstable, ubuntu jammy, ubuntu noble, ubuntu questing, ubuntu resolute, ubuntu stonking

💖 jtag — the UrJTAG command shell 💖

okay so bestie, welcome to jtag, aka the UrJTAG command shell. it's a section 1 command (a "General Commands Manual" girly, if we're being official about it) and honestly? she's iconic. let's get into it 💅

✨ SYNOPSIS ✨

jtag [-hinqv] file ...

that's it. that's the whole vibe. flags, then some files. slay 🎀

🌸 DESCRIPTION 🌸

so UrJTAG is a software package that lets you work with JTAG-aware hardware devices (they call them parts) and boards — and you do all of that through a JTAG adapter. the IEEE number for it is 1149.1, iykyk. it's giving "talking to your chips through a little adapter bestie" and honestly the way that works is so cool.

✨ OPTIONS ✨

one bullet per flag, no skips, we're thorough in this house 🫶

  • -h, --help — prints a short help text and then dips. bye 👋
  • -i, --interactive — drops you into interactive mode after running the commands from your files. also: this is the default if you didn't name any files on the command line, so if you just ran bare jtag, surprise, you're already in it 💖
  • -n, --norc — disables reading ~/.jtag/rc on startup. like, don't load the rc file, don't even look at it 🙈
  • -q, --quiet — do not print help on startup. no yapping, just vibes 🤫
  • -v, --version — shows version info and exits. short and sweet ✨

🌈 ARGUMENTS 🌈

so if there's anything left over after option processing, those become the names of files containing JTAG commands — one command per line, no cap.

⚠️ heads up: unless you passed --interactive, the program exits after it's done processing the commands from the file(s). so if you were expecting to hang around after, bestie, she's gone 💀

🎀 FILES 🎀

  • ~/.jtag/rc — a per-user text file with JTAG commands to execute at startup. your personal little pre-game ritual 💅
  • /usr/share/urjtag — the data files about various CPUs, flash chips, etc. the lore archive 📚

💀 BUGS 💀

bugs are tracked at the project homepage, http://www.urjtag.org. if you found one, go tell them, not me 😭

🌟 SEE ALSO 🌟

👑 AUTHORS 👑

authors and contributors are listed in the AUTHORS and THANKS files in the source documentation. give them their flowers, they earned them 🌸

🦋 HISTORY 🦋

JTAG Tools originally got developed as part of the openwince project by Marcel Telka. then in late 2007 they became their own independent project named UrJTAG. glow-up era, periodt ✨

and that's the whole page, bestie!! this one's from the UrJTAG girlies, dated April 7, 2009 — yeah she's vintage but she still ate 💖🫶🎀

📦 where this page comes from